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Method to reduce radiation dose in multidetector ct while maintaining image quality

a multi-detector, computed tomography technology, applied in tomography, instruments, applications, etc., can solve the problems of not being very anatomically specific, reducing radiation dose to specific radiation sensitive organs, and high risk of patients developing cancer, so as to reduce radiation dose, reduce radiation dose, and reduce radiation dose to small organs

Active Publication Date: 2013-07-25
RGT UNIV OF CALIFORNIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention reduces the amount of radiation that patients receive during a standard helical CT scan. It specifically targets sensitive organs that are exposed during the scan, such as small organs on small patients and the lens of eyes on adults. This can help to minimize the risk of harm from the radiation and improve patient safety.

Problems solved by technology

The number of CT exams performed on patients has dramatically increased during the past few years, which has resulted in a higher risk of developing cancer for the patients due to the radiation dose received during the CT scans.
However, they have not been very anatomically specific, nor have they targeted specific radiation sensitive organs for radiation dose reduction.

Method used

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  • Method to reduce radiation dose in multidetector ct while maintaining image quality
  • Method to reduce radiation dose in multidetector ct while maintaining image quality
  • Method to reduce radiation dose in multidetector ct while maintaining image quality

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Embodiment Construction

[0035]The following description is presented to enable one of ordinary skill in the art to make and use the invention and is provided in the context of a patent application and its requirements. Various modifications to the described embodiments will be readily apparent to those skilled in the art and the generic principles herein can be applied to other embodiments. Thus, the present invention is not intended to be limited to the embodiment shown, but is to be accorded the widest scope consistent with the principles and features described herein.

[0036]In some embodiments, the steps of the present invention are embodied in machine-executable instructions. These instructions can be used to cause a general-purpose or special-purpose processor that is programmed with the instructions to perform the steps of the present invention. Alternatively, the steps of the present invention might be performed by specific hardware components that contain hardwired logic for performing the steps, or...

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Abstract

A method of reducing radiation dose for a selected organ on a patient in a computed tomography (CT) scan that uses an X-ray source to scan the patient. The method comprises a computer determining a tube start angle for the X-ray source of the CT scan based on a location of the selected organ, a starting location of the X-ray source, a beam width of the CT scan, and a pitch of the CT scan. The starting angle of the X-ray source of the CT scan can then be set based on the determined tube start angle. In some embodiments, the organ location, X-ray starting location, beam width, and pitch are used to determine the number of tube rotations from the X-ray starting location to the organ location. This tube rotation number can be used to determine the tube start angle.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to co-pending U.S. Provisional Application Ser. No. 61 / 366,339, filed Jul. 21, 2010, entitled “METHOD TO REDUCE RADIATION DOSE IN MULTIDETECTOR CT WHILE MAINTAINING IMAGE QUALITY,” which is hereby incorporated by reference as if set forth herein.[0002]This invention was made with Government support under Grant No. EB004898, awarded by the National Institutes of Health. The Government has certain rights in this invention.FIELD OF THE INVENTION[0003]The present invention relates to the field of medical imaging. More particularly, the present invention relates to a method of reducing radiation dose in a multidetector computed tomography (CT) scan.BACKGROUND OF THE INVENTION[0004]The number of CT exams performed on patients has dramatically increased during the past few years, which has resulted in a higher risk of developing cancer for the patients due to the radiation dose received during the CT scans. Radia...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/035A61B6/488A61B6/5217A61B6/03A61B6/545A61B6/547A61B6/583A61B6/542
Inventor MCNITT-GRAY, MICHAEL F.ZHANG, DI
Owner RGT UNIV OF CALIFORNIA